Garmin
Edge 500 w/HR, speed/cadence

Details

Finally, a tool as vital as your bike itself. It will change the way you view riding by showing you your strengths, your weaknesses, where you're going, and where you've been. The sleek, slim Garmin Edge 500 is ideal for the avid racer and weekend warrior alike—it displays data such as speed, distance, cadence, and heart rate, and it's compatible with ANT+ power meters (sold separately), giving you the key to unlock your hidden potential. It's GPS-enabled, allowing you to download and analyze training files on programs like Garmin Connect and Strava. Get the most out of your valuable ride time with the Edge 500.

ANT+ is a wireless technology that allows your monitoring device to seamlessly communicate with other ANT+ products such as speed sensors, heart rate monitors, power meters, and foot pods that track running/walking progress.

I discounted the Edge 500 since I believed that my iPhone could function just as well for tracking my course. Turns out the iPhone is only good for four hours till the battery dies running Strava. The Edge 500 has an 18-hour life and includes the HRM and Cadance. All of your ride data can easily upload to Strava or the Garmin dedicated tracking site Garmin Connect. I've found sites like, GPSies that have a wide variety of coarses that I can drag and drop into my Edge 500. I can then follow these coarse without worrying about getting lost or killing my iPhone battery in case I need it in an emergency. You can create your own custom coarse on the Garmin site and save it to your Edge then follow this as well. Great product all around. I'm Glad [...] recomended this to me!